Minor fix to get docker image name
Minor fix to get docker image name

Tags: chg, dev
Added an awk change to grep for image name correctly.

Change-Id: I615755007fa011289fb28135fb7dc597250959e3
Signed-off-by: Vasanth Viswanathan <d48b3422a282630a64d8e0fb874e5cdb5871206c@hpe.com>

open-switch/infra_project-config,open-switch/infra_project-config